Re: KASAN: use-after-free Read in seq_escape

From: Theodore Y. Ts'o
Date: Tue Oct 02 2018 - 10:49:40 EST


On Sun, Sep 30, 2018 at 11:58:02PM -0700, syzbot wrote:
> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 17b57b1883c1 Linux 4.19-rc6
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1672d711400000
> kernel config: https://syzkaller.appspot.com/x/.config?x=c0af03fe452b65fb
> dashboard link: https://syzkaller.appspot.com/bug?extid=a2872d6feea6918008a9
> compiler: gcc (GCC) 8.0.1 20180413 (experimental)

This should be fixed with the following patch.

- Ted